Correlation and path cofficient analysis for seed cotton yield and its components in desi cotton (Gossypium arboreum L.)

Abstract

Thirty seven Genotypes comprising of the ten parents, twenty five crosses and two checks were grown in randomized block design with two replications during kharif 2015 to undertake correlation and path analysis studies in cotton. In the present investigation genotypic and phenotypiccorrelation of seed cotton yield with number of bolls per plant were found significant and positive. However, negative association of seed cotton yield with both day to 50 percent flowering and days to maturity suggested the need to longer vegetative phase for sufficient accumulation of sink. The maximum direct effect on seed yield was shown by ginning out turn (%) and it was followed by number of sympodia per plant, number of bolls per plant, staple length (mm) and 100 seed weight. Whereas, days to maturity exhibited highest negative direct effect on seed yield followed by plant height, boll weight, days to 50 per cent flowering and number of monopdia per plant. The negative direct effect of number of seeds perboll on seed cotton yield was nullified by positive indirect effect via, plant height, days to maturity, ginningoutturn, bollweight and days to 50 per cent flowering.